Compare / head-to-head
Kimi K2-0905vsKimi K2.5
Kimi K2.5 leads 3 of 3 shared benchmarks. Both offer a 256K-token context window.
Benchmarks from cited public sources; pricing from official pages; status from official provider feeds.
Shared benchmarks
0 – 3
Kimi K2.5 leads
Cheaper per token
—
list price, input + output
Larger context
Tie
both 256K tokens
Providers
Moonshot AI
same provider
Kimi K2-0905
Moonshot AI · released 2025-09-05
text
- Context
- 256K
- Max out
- —
- Input /1M
- —
- Output /1M
- —
- Cached /1M
- —
- Scores
- 6 · 3 core
Kimi K2.5
Moonshot AI · released 2026-01-27
textvisionvideo
- Context
- 256K
- Max out
- —
- Input /1M
- —
- Output /1M
- —
- Cached /1M
- —
- Scores
- 26 · 14 core
Quality
Benchmark matrix
3 shared · 3 only Kimi K2-0905 · 23 only Kimi K2.5| Benchmark | Kimi K2-0905 | Kimi K2.5 | Δ | Edge |
|---|---|---|---|---|
| Reported by both · 3 | ||||
| SWE-bench Verified | 69.2% ↗ | 76.8% ↗ | -7.6 pt | Kimi K2.5 |
| SWE-Bench Multilingual | 55.9% ↗ | 73% ↗ | -17.1 pt | Kimi K2.5 |
| WeirdML (Håvard Tveit Ihle) | 36.7% ↗ | 45.6% ↗ | -8.9 pt | Kimi K2.5 |
| Only Kimi K2-0905 reports · 3 | ||||
| Multi-SWE-Bench | 33.5% ↗ | not reported | — | — |
| SWE-Dev | 66.6% ↗ | not reported | — | — |
| Terminal-Bench (Terminus-2) | 44.5% ↗ | not reported | — | — |
| Only Kimi K2.5 reports · 23 | ||||
| MMLU-Pro | not reported | 87.1% ↗ | — | — |
| AIME 2025 | not reported | 96.1% ↗ | — | — |
| LMArena Elo | not reported | 1450.1 ↗ | — | — |
| BrowseComp | not reported | 60.6% ↗ | — | — |
| GPQA-Diamond | not reported | 87.6% ↗ | — | — |
| HLE-Full | not reported | 30.1% ↗ | — | — |
| HLE-Full (w/ tools) | not reported | 50.2% ↗ | — | — |
| HMMT 2025 (Feb) | not reported | 95.4% ↗ | — | — |
| IMO-AnswerBench | not reported | 81.8% ↗ | — | — |
| LiveCodeBench (v6) | not reported | 85% ↗ | — | — |
| LMArena Vision (LMArena) | not reported | 1252.2 ↗ | — | — |
| LMArena WebDev (LMArena) | not reported | 1435.8 ↗ | — | — |
| MMMU-Pro | not reported | 78.5% ↗ | — | — |
| OSWorld-Verified (XLANG) | not reported | 63.3% ↗ | — | — |
| SAGE (Vals AI) | not reported | 49.9% ↗ | — | — |
| SimpleBench (SimpleBench) | not reported | 46.8% ↗ | — | — |
| SimpleQA Verified | not reported | 34.3% ↗epoch run | — | — |
| SWE-Bench Pro | not reported | 50.7% ↗ | — | — |
| SWE-bench Verified (Epoch AI run) | not reported | 73.8% ↗epoch run | — | — |
| Terminal Bench 2.0 | not reported | 50.8% ↗ | — | — |
| Toolathlon-Verified (HKUST) | not reported | 33% ↗ | — | — |
| Vending-Bench 2 (Andon Labs) | not reported | 1198.46 ↗ | — | — |
| VideoMMMU | not reported | 86.6% ↗ | — | — |
Scores tagged "epoch" or "matharena" are independent runs, used only where the lab has not published its own; ⚠ marks rows MathArena flags as released after the competition. Higher is better on every row. Δ is Kimi K2-0905 minus Kimi K2.5 in the benchmark's own unit. "Not reported" means the lab has not published that figure; it is not a zero. ↗ opens the source.
Specs & pricing
Side by side
Official pricing pages and model cards| Spec | Kimi K2-0905 | Kimi K2.5 | Edge |
|---|---|---|---|
| Context window | 256K tokens | 256K tokens | Tie |
| Max output | — | — | — |
| Input price / 1M | — | — | — |
| Output price / 1M | — | — | — |
| Cached input / 1M | — | — | — |
| Input + output / 1M Lower is cheaper. List prices; batch, tool and regional fees excluded. | — | — | — |
| Modalities | text | text · vision · video | Kimi K2.5 |
| Released | 2025-09-05 | 2026-01-27 | — |
| Cited benchmark scores | 6 | 26 | — |
Reliability
Moonshot AI status
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Which one wins on your data?
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